Side frame structure



R. B. corTm-:LL 2,394,232

SIDE STRUCTURE Feb. 5, 1946.

Fired- `Aug.- 29'; 41942 INV ENTOR.

Patented F eb. 5,-1946 STRUCTURE Robert' B. Cottrell, Chicago, Ill., assigner toAmerican Steel Foundries, Chicago, `Ill., a corpora- 1- tion vof'New Jersey Applicationnugusta 1942 .Serial.No..45.6,69 6

(Cl. 18S-212) YMy 'invention-relates to-a novel zform `oi? truss type railway rtruck side ira-me and arnovel :brake beam suvpportfassociated therewith.

:1:11a wellslenown typecfftruck and v`brake ar.- rangement, the brake beams are supportedfrom the side frames by parallel flanges integrally 'formed or Vsupported on the inboardiacesof the framebetween which maybereceived projections on the ends of the beams vor on the :brakeheads associated therewith. fI have discoveredjthat under certain conditions :an improvement `in the working arrangement yof isuch a general type 'of brake 'bea-m may fbe accomplished `by using -jaw means on thebrake beam foi-:cooperation with k.a single .guiding Y ange integrally -formed or otherwise ysupported on :the :inboard liaces of the iside frames.

A more specic object of vmyinvention-is to devise `abrakebeam support Eformed as an integral part cfa well-knowntype of truss -sidezframe structure comprising tension and compression members and spaced columns wherein'thebrake beam guide means may comprise -a diagonal bracket or flange formed on the inboard -face of each 1f-rame adjacent veach column thereof,and wherein one end 'of said bracket or -ange may merge Iwith the nearby -column at its juncture with the spring seat pcrtionof the side frame andthe opposite end thereof may -merge with an intermediate portion over a diagonal part of f the tension member.

'ln the drawing,

Figure l1 isa-side elevation/taken from the 'inboard face of 'my novel -form of side frame structure with brake beam supportsthereon, onlyone end of the frame structure being shown vinasmuch as opposite ends are alike.

Figure 2 is a bottomplan'viewof the side frame `structure shown in Figure 11, and Eigures l'3 and truss type with a top or compression memberl 34 and a bottom or ten-sion member 36, the integral column 38 forming with said members a compression members have diagonal `end -portions outwardly of :the column forming therewith the window yopening 4t and merging adjacent their ends with the 'integral box 42. The column 38 may be of generally U-section with the ver tical transverse web fblB .'(Figure 2) merging at its'lower end as -at 48 with the diagonal vwebil of the tension member,said web 58 being Va continuation of the web52 aiiording a spring seat at the bottom of the bolster opening. Beneathing means J64, 64 in usual lmanner and vmay be cored away-as at 66, 66 to permit escape ofsurplus water or other extraneous matter.

The bottom chord -54 off the tension member extends intethe diagonal portionsfthereof as best seen in Figures 3 and 4, the tension member outwardly of the the columns being of -U-,section and comprising an inboard webBS and an cutboard web 10, as lwell as the 'before-mentioned transverse web 54. v

On the inboard face ofthe frame and at each end thereof may be formed an integral ,brake beam guide bracket or ange 12, one extremity of which may merge as at 48 with the web 46 of the -column and the web .52 gf the tension member, Vas well as the extension 50 thereof, and at said juncture the top surface of the ange 'l2 may be cored away as at 'I4 (Figure l) 'for convenient foundry practice. The opposite end of the guide bracket or ange 'l2 Amay be similarly cored away on its topsurface as at 'l5 and may be reinforced by the web 7.6 merging with Athe side wall B8 of the tension member, and this Vend .of

the bracket v'l2 may be cored away as at '1.8 to provide additional `wheel clearance. It will be understood that the portion o f the web 46 inboard lthe web 68 denes agussetror reinforcing' web to strengthen the connection between `the angef'IZand the column, said gusset aiording a convenient abutment at the rear extremity of the flange 12 to prevent the beam from sliding ofi the rear extremity of the ange 'l2 in the release movement of said beam away from the associated wheel.

An opening or a plurality of them may be cored in the bracket 12 for reception of securing lugs 82, '82 which may be integrally formed with the spring wear plate or liner 84, said liner conforming in general shape to the configuration of the shelf 12 and extending from one extremity to the other thereof and being receivable within the jaw end portion 86 of the brake beam as illustrated in dotted lines in Figure 4.

It will thus be seen that myv improved arrangement the side frame structure is simplied and the brackets formed on the inner face of each side frame aiTord a simple and effective means of association with the jaw ends of the before-mentioned type of brake beam. It may be noted that with this arrangement there is little tendency for the bracket on the side frame to accumulate extraneous matter which might interfere Vwith the normal sliding operation of the brake beam in its association with the side frame and, particularly, that said normal sliding movement will tend to clear any matter that might thus accumulate.

It should be noted that While the plane of the supporting bracket 12 is approximately radial to the wheel center as indicated at 88 (Figure l), nevertheless, it may vary slightly with'respect thereto in order to 'afford satisfactory engagement between the shoes on the brake beam and the periphery of the adjacent wheel.

It is to be understood that I do not Wish -to be outboard walls and a transverse web extending therebetween and defining the adjacent margin of said bolster opening, said tension member being of box-section beneath said bolster opening with the top chord of said box-section widened and formed with upstanding inboard and outboardiianges deiining a springseat, said anges merging with said inboard and outboard walls and with said'web adjacent the lower extremity of said column, and a brake beam bracket consisting of a guide web extending from the inboard side of said tension member, and a pair of spaced gussets connected to said guide web at the forward Vand rear extremities thereof respectively, one of said gussets merging with said transverse web and with said inboard iiange and presenting an abutment surface at the rear extremity of said guide web to prevent an associated brake beam from sliding off said rear extremity. l

3. A truss side frame comprising tension and compression members and a column adjacent each end of the frame merging with' said members to define therewith a window opening and a bolster opening, said column having inboard and outboard walls and a transverse web extending therebetween and defining the adjacent margin of said bolster opening, said tension member being of box-section beneath said bolster opening limited by the exact embodiment of the device shown which is' merely by way of' illustration and not limitation as various and other forms of the device will, of course, be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

Iclaim:

1. A truss sideframe comprising tension and compression members and a column adjacent each end of the frame merging with said members to define therewith a window opening and a bolster opening,said column having inboard and outboard walls and a transverse Web'extending therebetween and dening the adjacent margin of said bolster opening, said tension member being of box-section beneath said bolster opening with the top chord of said Vbox-section widened and formed with upstanding inboard and outboard flanges defining a spring seat, said flanges merging with said inboard and outboard walls and with said web adjacent the lower extremity of said column, and a brake beam bracket consisting of a guide web extending from the inboard side of said tension member and being disposed in a plane approximately radial to an associated wheel, and a pair of spaced reinforcing webs connected to said guide web at the forward and rear extremities thereof respectively, one of said spaced webs merging with said transverse web and with said inboard flange and presenting a substantially vertical abutment surface at the rear extremity of said guide web to prevent an associated brake beam from sliding off the rear extremity of said guide web1 t 2. A truss side frame comprising tension and ,compression members and a column adjacent each end of the frame merging with said members to dene therewith a window opening and a bolster opening, said column having inboard and with the top chord of said box-section widened and formed with upstanding inboard and outboard flanges defining a spring seat, said flanges merging with said inboard and outboard walls and with said web adjacent the lower extremity of said column, and a brake beam bracket consisting of a guide web extending from the inboard side of said tension member, and a reinforcing web connected to Vsaid guide web at the rear extremity thereof and merging with said transverse web and with said inboard flange, said reinforcing web presenting stop means at the rear extremity of said guide web for abutment with an associated brake beam under certain operating conditions.

4. A truss side frame comprising tension and compression members and a column adjacent each end of the frame merging with said members to deiine therewith a bolster opening, said column having an inboard wall and an angularly related transverse web defining the adjacent margin of said bolster opening, said tension member being of box-section beneath said opening with the top chord of said box-section widened and formed with an upstanding fiange deiining the inboard Amargin of a spring seat on said top chord, said ROBERT B. COT'IRELL. 

